American Made
Buy Machine Shop Direct
Need Assistance? Call us at 425.530.0837
15" SDX(R) Rail w/barrel nut and screws
On Target With
Savings Of
Original Price $159.99
Sale Price $139.99
The SDX(R) M-LOK rail designed and machined in house by Hardened Arms LLC is one of the smallest diameter M-LOK rails on the market today. With its smooth Type II Class III anodization and 1.40 OD circumference, it fits the hand for the ultimate in control, weight savings and streamlining. Popular with those who want the latest trend in the competition world, this slim profile rail is perfect for a top grip style stance. where a rock-solid lockup and keeping total control is needed. This "skinny rail" will  keep you fast and nimble with target acquisition and nimble movement.while being fast. The industry standard M-LOK features at 3:00, 6:00 and 9:00 allow for everything from additional rail sections to remote light switch accessories to be mounted while maintaining the lowest profile possible.

The Hardened Arms SDX(R) rail comes with a steel barrel nut and mounting screws. We recommend greasing the barrel nut before installing on your upper receiver to a torque value between 30ft/lb and 70ft/lb three times before final indexing. Built from 6061-T6 aircraft aluminum with level III hard anodizing, this high end rail is designed to fit your 16" barrel with a pistol, carbine, mid-length or rifle length gas system.

Handguard Specs:
    Machined in our Friday Harbor, WA Facility
    6061-T6 Aircraft Aluminum
    Bead Blasted Type III Class II Black Anodized
    Steel barrel nut
    8x Allen head screws (included)
    15" handguard
    Free floated design
    M-LOKs mounting system at 3, 6 & 9
    Picatinny on the top of the rail for optic mounting
    Handguard weighs only 12.6oz
    Interior Diameter of 1.3" inches
    Self indexing rail lock
515 Tucker Ave Friday Harbor, WA 98250 |
Phone: 425-530-0837